Boris Johnson has received a legal questionnaire from police investigating allegations of lockdown-breaching parties in Downing Street.
No 10 confirmed on Friday evening that the British prime minister had received the legal form from Metropolitan Police officers, and said he will “respond as required”.
The move means Mr Johnson will have to provide a credible reason as to why he was at events held during coronavirus restrictions or face a fine.
A No 10 spokeswoman said: “We can confirm the Prime Minister has received a questionnaire from the Metropolitan Police. He will respond as required.”
The Met Police say the questionnaires ask for an “account and explanation of the recipient’s participation in an event” and have “formal legal status and must be answered truthfully”.
The move means Mr Johnson will have to provide a credible reason as to why he was at events during coronavirus restrictions or face a fine for breaking coronavirus laws.
Officers working on Operation Hillman are sending the questionnaires to more than 50 individuals across Downing Street and the wider UK government as they investigate 12 events.
The prime minister is alleged to have been at up to six of them, including the “bring your own booze” party in the No 10 garden in May 2020 during the first lockdown.
Mr Johnson allegedly attended another organised by his wife Carrie Johnson in the official Downing Street residence in November that year, during which Abba songs were reportedly heard on the night of former chief adviser Dominic Cumming’s departure.